title: In situ investigation of processing property in combination with integration of microbial fuel cell and tubular membrane bioreactor.
abstract: Microbial fuel cell (MFC) presents a novel method for simultaneous energy recovery and wastewater treatment. In this study, a bio-cathode MFC with tubular membrane assembly was integrated to construct a MFC-TMBR system, which combined the advantages of each individual module. To examine the feasibility of MFC-TMBR integrated process, both electricity generation and wastewater treatment were investigated. Maximum voltage output of 0.8 V and maximum power density of 0.040 W/m(2) were obtained in the 30th day of operation. The MFC-TMBR system achieved organic removal of 94%, as well as the ammonia nitrogen removal of more than 80%. Membrane fouling mitigation was realized using cross-flow filtration with tubular membrane in the MFC-TMBR, without any physical cleaning during the 30-day operation. Lower MLSS concentration and higher DO could potentially support this system. Low-cost materials were adopted for reactor construction. The results demonstrate that this system is an energy-efficient and cost-effective approach for wastewater treatment.
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China. Electronic address: wangjiemailbox@163.com.
authors.forename: Jie
authors.initials: J
authors.lastname: Wang
authors.forename: Yawen
authors.initials: Y
authors.lastname: Zheng
authors.forename: Hui
authors.initials: H
authors.lastname: Jia
authors.forename: Hongwei
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000641:Ammonia / Q000302:isolation & purification; D001674:Bioelectric Energy Sources; D057219:Biofouling / Q000517:prevention & control; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D004560:Electricity; D008567:Membranes, Artificial; D009584:Nitrogen / Q000302:isolation & purification; D011312:Pressure; D012722:Sewage / Q000737:chemistry; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D012722:Sewage; D000641:Ammonia; D009584:Nitrogen
keywords: Energy recovery; Membrane fouling; Microbial fuel cell (MFC); Tubular membrane bioreactor (TMBR); Wastewater treatment